Chapter 7 



EFFECT OF WAVE PERIOD AND 

 ARMOR GRADATION ON DAMAGE PROGRESSION 



7.1 Experimental Setup and Test Conditions 



It is expected that the empirical coefficients in Equations 6.15 and 6.16 are, 

 to some extent, a function of wave period. In addition, only uniform sized armor was 

 utilized in Series A', B', and C. Therefore, four test series (D', E', F', and C) were 

 added to address the effect of wave period and stone gradation on damage progression. 

 These additional test series are summarized in Table 7.1 along with Series A', B', and C 

 for comparison. The spectral and time series incident wave parameters for all series are 

 listed in Table 7.2. Damage measurements are summarized for Series D', E\ F', and G' 

 in Tables B4 through B7 in Appendix B. 



Table 7.1 



Summary of Test Series for Damage Experiments 



Test 

 Series 



Test 

 Type 



Armor 

 Type 



Water Level 

 Order 



Test Duration 

 (hr) 



A' 



Deterioration to Failure 



Uniform 



Low - High 



28.5 



B' 



Storm Ordering 



Unifonn 



Low - Higii 



8.5 



C 



Storm Ordering 



Uniform 



High - Low 



9.0 



D' 



Wave Period 



Uniform 



Low-High 



8.5 



E' 



Wave Period 



Uniform 



Low-High 



8.5 



F' 



Gradation 



Riprap 



Low-High 



8.5 



G' 



Gradation 



Riorao 



Low-Hiah 



8.5 



127 



